Foment.
Vivacity.
The escape of gas from solution in a liquid, especially the escape of carbon dioxide from a carbonated drink.
A state of agitation.
The foam made by rapidly stirring soap and water.
Foam from profuse sweating, as of a horse.
To form lather or froth, as a horse does when profusely sweating.
To cover with lather.
To beat or whip.